发明名称 SOFT DOME DIAPHRAGM
摘要 PROBLEM TO BE SOLVED: To provide a soft dome diaphragm which excels in molding, releasing, dimensional stability and weather resistance by using a soft fluororesin film obtained by applying graft polymerization of crystalline fluororesin to the fluoro- rubber for a surface layer. SOLUTION: This soft dome diaphragm consists of a base material including a base fabric and a surface layer which formed on the base fabric via an adhesive. The surface layer uses a soft fluororesin film which is obtained by applying graft polymerization of crystalline fluroresin to the fluoro-rubber. The fluoro- rubber uses an optional proper rubber-like material obtained from the olefin containing fluorine or copolymerized olefin. The representative examples of fluoro-rubber include an acrylic ester copolymer containing fluorine, a diene coplymer containing fluorine, etc. In such a constitution, the dome diaphragm excels in molding, releasing, dimensional stability and weather resistance owing to its soft fluororesin film surface layer.
申请公布号 JP2001016683(A) 申请公布日期 2001.01.19
申请号 JP19990187456 申请日期 1999.07.01
申请人 ONKYO CORP 发明人 KUMO HIROYASU
分类号 H04R7/12;H04R7/02;(IPC1-7):H04R7/12 主分类号 H04R7/12
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